s = input ('Enter a string of brackets: ')
s1 = ''
for char in s:
    if char == "(":
        s1 += char
    if char == ")":
        if len (s1) > 0:
            if s1[len(s1) - 1] == "(":
                s1 = s1[:-1]
    if char == "[":
        s1 += char
    if char == "]":
        if len (s1) > 0:
            if s1[len(s1) - 1] == "[":
                s1 = s1[:-1]
    if char == "{":
        s1 += char
    if char == "}":
        if len (s1) > 0:
            if s1[len(s1) - 1] == "{":
                s1 = s1[:-1]
    if char == "<":
        s1 += char
    if char == ">":
        if len (s1) > 0:
            if s1[len(s1) - 1] == "<":
                s1 = s1[:-1]
if len(s1) == 0:
    print ("True")
else:
    print ("False")
